Rock Specimens
Rock specimens are useful for studying textures, grain sizes, and other features altered by pressure, temperature, and other natural forces. Different select categories of rock specimens are available for purchase as well, including metamorphic, igneous, and sedimentary rocks. Sets of rock specimens are housed in compartmentalized collection boxes, with descriptions of each specimen printed for easy confirmation of identification. These rock specimens are carefully selected to be the highest quality to provide students with a suitable introduction to earth materials and their characteristics.
Ward's® Andesite (Porphyry)
Gray andesite with phenocrysts of felspar and/or hornblende.
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Ward's® Mantle Xenolith
Glossy green dunite (olivine) inclusion in non-genetically related basalt. Average size: 3" x 4".
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Ward's® Cross-bedded Sandstone
Sawn and lacquered slab showing thinly bedded truncated layers in a well-cemented sandstone. Large hand specimen.
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Ward's® Conglomerate (Quartz)
Small, rounded pebbles and tightly cemented granules.
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Ward's® Diorite
Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.
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Algal Stromatolite (Cynobacteria) (PreCambrian)
Beautifully polished and distinctive slabs or rare 2.3 billion year old fossil stromatolites. Well defined growth structures in matrix.
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Ward's Science Essentials® Igneous Rocks Collection
Introduce your students to rocks formed from the cooling of magma and lava.
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Ward's Science Essentials® Sedimentary Rocks Collection
Introduce your students to rocks formed from deposition of sediment.
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Ward's Science Essentials® Metamorphic Rocks Collection
Introduce your students to rocks formed metamorphism of other rocks.
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Ward's® Snowflake Obsidian (Cristobalite), Student Specimens
Volcanic glass with snowflakes embedded throughout.